Quarterly report pursuant to Section 13 or 15(d)

Information by Business Segment (Details 4)

v3.20.1
Information by Business Segment (Details 4) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 4,054,457 $ 3,854,453 $ 3,775,859
Operating properties lease liabilities included in segment assets 17,365 $ 17,317  
Segment assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 3,066,945   3,108,153
Operating properties lease liabilities included in segment assets 17,365   16,342
Non-operating property assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets 658,978   485,911
Other assets      
Reconciliation of segment assets to total assets      
Total COPT consolidated assets $ 311,169   $ 165,453